This comprehensive and interactive course will teach you the fundamentals and principles of mechanical seals, followed by the classification, construction, and design of the mechanical seals. You will learn how to select seals for a variety of specific and special industrial applications for a variety of equipment and materials based on various standards. You will also learn about environmental considerations as per the API standards.
The course is composed of 12 modules, covering topics such as environmental considerations related to seals as per API 610 and 682, design, installation, and troubleshooting of seals, and how to maximize mechanical seal life. It will also demonstrate the classification of various seals, including special seal types, considerations related to the materials used in seal construction, and selection, operation, and maintenance strategies.
Module 1: Fundamentals and Principles
Definition of zero leakage
Mechanics of sealing
Purpose of sealing
Basics regarding speed and pressure
Basic seal requirements
Wear and seal life
Module 2: General, Special Seal Types and Materials of Seal Construction
Static and dynamic seals
Special seal types
Bushing, labyrinth and diaphragm seals
Gas, motion, slurry seals
Liquid ring and liquid barrier seals
Inflatable, ferrofluidic seals
Positive action type
Self-adhesive compression seals
Properties of elastomers
Miscellaneous sealing materials
Module 3: Seals for Specific/Special Applications
Hydraulic and pneumatic seals
Seals for special applications
Large diameter seals
High-speed sealing applications and requirements
Sources of excessive hydraulic pressure
Overcoming problems associated with high-pressure
Vacuum sealing applications
Module 4: Seal Selection, Application and Standards
Seal selection guides
Static and dynamic seal applications
Standards-ISO, British, DIN, ASME
Module 5: Mechanical Seal Fundamentals, Seal Design and Classification
Introduction and fundamentals
Identifying seal components and their function
Primary sealing components – seal head, seal seat, springs for face loading, metal bellows
Module 6: Mechanical Seal Materials, Environmental Considerations and Control
Suitable mating combinations
Abrasives, heat, dry operation
Flushing, recirculation, quenching
Convection, cooling, jacketing
Buffer and barrier fluid
Dead-end lubrication, grease packing, circulating face lubrication
API 610 and 682 environmental control schemes
Module 7: Auxiliary Equipment
Air-coolers and heat exchangers
Rotameters and flow controllers
Filters and strainers
MODULE 8: Seal Storage, Handling and Installation
Seal storage and handling
Seal installation considerations
Module 9: Mechanical Seal Selection and Standards
Process liquid characteristics
Inboard vs. outboard mounting
Rotating vs. stationary seal ring
Primary seal ring design
Secondary sealing devices
Seal selection rules
Mechanical seal standards
Module 10: Seal Failures
Factors influencing seal life
Factors affecting seal performance
Categorization of failures
Seal malfunction and probable causes
Premature failure causes
Seal face symptoms
Friction and wear
Adhesion, abrasion, corrosion and surface fatigue
Module 11: Troubleshooting Failed Seals
At the pumping site
At the equipment teardown
Discoloration, chipping, cracking, rubbing, elastomer swelling, stickiness, hardness – what do these mean?
Module 12: HOW TO MAXIMISE MECHANICAL SEAL LIFE
Preparing the pump – mechanically, hydraulically
Controlling temperature in the stuffing box
Controlling pressure in the stuffing box
What seal to choose?
What face combination and elastomer?
To obtain a certificate of completion for EIT’s Professional Certificate of Competency course, students must achieve a 65% attendance rate at the live, online fortnightly webinars. Detailed summaries or notes can be submitted in lieu of attendance. In addition, students must obtain a mark of 60% in the set assignments which could take the form of written assignments and practical assignments. Students must also obtain a mark of 100% in quizzes. If a student does not achieve the required score, they will be given an opportunity to resubmit the assignment to obtain the required score.
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You are expected to spend approximately 5-8 hours per week learning the course content. This includes attending fortnightly webinars that run for about 90 minutes to facilitate class discussion and allow you to ask questions. This professional development program is delivered online and has been designed to fit around full-time work. It will take three months to complete.
Hear from our students
The delivery methodology and the information available in the e-library can’t be beaten. The other important aspect of online education is recorded lectures. You can review the tutorial and lessons on repeat when you need to understand the concept.
M Masemola, South Africa
What I liked most about the course and EIT is the flexibility is offered regarding education. It gave me the opportunity to study and work full-time.
C Groenewald, South Africa
I enjoyed interacting with students all around the world, and seeing how the principles I have learned applies to them as well.
S Zeelie, South Africa
My line of work requires me travel quite often. I could not attend every class due to my remote locations, but still I could recap and stay on top of the study material thanks to the recordings. Also, all the Instructors were world class.